You can go through my phones anytime.” He felt guilty that she had to resort to that to earn his trust. He refused. She insisted. “Please oppa… Just make me feel better… I hate having to fight with you on small matters. This will resolve half of our fights.” But he never opened to check on her conversations to clear his doubts. He trusted her enough to ask her and accept her answers. He told her he would only open one phone and the other will be the one that’s supposed to teach him to trust her. It was just to comfort her. He never go through her chats. He goes through to see photos or videos of them and her calendar to set and check her schedule.